The 2007 NAB AFL Under 18 Championships was the 12th edition of the AFL Under 18 Championships. Eight teams competed in the championships: Vic Metro, Vic Country, South Australia and Western Australia in Division 1, and New South Wales/Australian Capital Territory (NSW/ACT), Northern Territory, Queensland and Tasmania in Division 2. The competition was played over three rounds across two divisions.[1] Western Australia and New South Wales/Australian Capital Territory (NSW/ACT) were the Division 1 and Division 2 champions, respectively.[2][3] The Larke Medal (for the best player in Division 1) was awarded to Western Australia's Cale Morton,[4] and the Hunter Harrison Medal (for the best player in Division 2) was won by NSW/ACT midfielder Craig Bird.[5]